WO2005043503A1 - プラズマディスプレイパネルの駆動方法およびプラズマディスプレイ装置 - Google Patents
プラズマディスプレイパネルの駆動方法およびプラズマディスプレイ装置 Download PDFInfo
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- WO2005043503A1 WO2005043503A1 PCT/JP2004/016700 JP2004016700W WO2005043503A1 WO 2005043503 A1 WO2005043503 A1 WO 2005043503A1 JP 2004016700 W JP2004016700 W JP 2004016700W WO 2005043503 A1 WO2005043503 A1 WO 2005043503A1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/291—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
- G09G3/292—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for reset discharge, priming discharge or erase discharge occurring in a phase other than addressing
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
- G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
- G09G3/2022—Display of intermediate tones by time modulation using two or more time intervals using sub-frames
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/291—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
- G09G3/292—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for reset discharge, priming discharge or erase discharge occurring in a phase other than addressing
- G09G3/2927—Details of initialising
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/291—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
- G09G3/293—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for address discharge
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/291—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
- G09G3/294—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for lighting or sustain discharge
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/291—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
- G09G3/294—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for lighting or sustain discharge
- G09G3/2948—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for lighting or sustain discharge by increasing the total sustaining time with respect to other times in the frame
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- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0202—Addressing of scan or signal lines
- G09G2310/0216—Interleaved control phases for different scan lines in the same sub-field, e.g. initialization, addressing and sustaining in plasma displays that are not simultaneous for all scan lines
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- G—PHYSICS
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- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0202—Addressing of scan or signal lines
- G09G2310/0218—Addressing of scan or signal lines with collection of electrodes in groups for n-dimensional addressing
Definitions
- the present invention is based on:
- Plasma display panels are display devices that have a large screen, are thin, and are lightweight, and have excellent visibility.
- a large number of discharge cells are formed between a front plate and a rear plate that are arranged to face each other.
- the front plate includes a plurality of display electrode pairs each composed of a scan electrode and a sustain electrode formed on a front glass substrate in parallel with each other, and a dielectric layer and a protective layer formed to cover the display electrode pairs.
- the back plate is composed of a plurality of parallel data electrodes on the back glass substrate, a dielectric layer covering them, and a plurality of partitions formed thereon in parallel with the data electrodes. Phosphor layers are formed on the surface of the layer and the side surfaces of the partition walls.
- the front plate and the back plate are disposed so as to face each other so that the display electrode pair and the data electrode cross each other three-dimensionally, and are sealed.
- a discharge gas is sealed in the internal discharge space.
- ultraviolet rays are generated by gas discharge in each discharge cell, and the red, blue, and green phosphors are excited and emitted by the ultraviolet rays to perform a color display.
- a subfield method that is, a method of dividing one field period into a plurality of subfields and performing gradation display by a combination of subfields for emitting light is generally used.
- each subfield has an initialization period, a write period, and a sustain period.
- the reset discharge is performed simultaneously in all the discharge cells, erasing the wall charge history of the individual discharge cells before that, and forming the wall charge necessary for the subsequent address operation.
- a scanning pulse voltage is applied to the scanning electrodes sequentially.
- an address pulse voltage corresponding to the image signal to be displayed is applied to the display electrode, and a write discharge is selectively generated between the scan electrode and the display electrode to selectively form a wall charge.
- a predetermined number of sustain pulse voltages are applied between the scan electrode and the sustain electrode, and the discharge cells, on which the wall charges are formed by the write discharge, are selectively discharged to emit light (for example, Uchiikedaira).
- the initialization operation is performed only once in multiple subfields, and the write operation is also performed.
- a driving method has also been proposed in which subfields to be emitted are made continuous by performing only once, and a false contour generated by the subfield method is suppressed (see, for example, Japanese Patent Application Laid-Open No. No. 6).
- the initializing period, the writing period, and the sustaining period are each executed in a time-division manner. It was long. As a result, there was a problem that the time allocated to the sustain period was shortened, and sufficient luminance could not be secured, or the time for increasing the number of subfields could not be secured, and the number of gray scales to be displayed could not be increased. '
- the present invention has been made in view of the above problems, and has an advantage in that a time allocated to a sustain period or a time for increasing the number of subfields is secured to drive a plasma display panel capable of achieving high luminance and high gradation display. It is an object to realize a method and a plasma display device. Disclosure of the invention
- a driving method of a plasma display panel includes a plurality of display electrode pairs extending in a row direction to form a display line, and a plurality of data electrodes arranged in a direction intersecting the display electrode pairs.
- a method for driving a plasma display panel in which discharge cells are formed at positions where data electrodes and display electrode pairs intersect at least one of the initialization period, the address period, and the sustain period is one field period. Consists of multiple subfields having a write period and a sustain period The display electrode pairs are divided into a plurality of blocks, and the start times of the subfields of each block are set to be shifted so that the writing periods of two or more blocks in the plurality of blocks do not overlap in time.
- FIG. 1 is a perspective view showing a main part of a panel used in a plasma display device according to an embodiment of the present invention.
- FIG. 2 is a drive circuit block diagram of the plasma display device and an electrode array diagram of the panel.
- FIG. 3 is a drive voltage waveform diagram applied to each electrode for one block of the plasma display device.
- FIG. 4 is a diagram showing timings of an initialization period, a write period, and a sustain period of each subfield for four blocks according to the first embodiment of the present invention.
- FIG. 5 is a diagram showing timings of an initialization period, a writing period, and a sustain period of each subfield for four blocks according to the second embodiment of the present invention.
- FIG. 6 is a diagram illustrating timings of an initialization period, a writing period, and a sustain period of each subfield for four blocks according to the third embodiment of the present invention.
- FIG. 1 is a perspective view showing a main part of a panel used in the embodiment of the present invention.
- Panel 1 is configured such that front plate 2 and rear plate 9 are arranged to face each other to form a discharge space therebetween.
- the front plate 2 has a plurality of scan electrodes 4 and sustain electrodes 5 constituting display electrodes formed in parallel on a front substrate 3 made of glass.
- a dielectric layer 7 is formed so as to cover scan electrode 4 and sustain electrode 5, and a protective layer 8 is formed on dielectric layer 7.
- a pair of the scanning electrode 4 and the sustaining electrode 5 form a display electrode pair 6.
- the back plate 9 is composed of multiple pieces of data covered with an insulator layer 12 on a glass back substrate 10.
- An electrode 11 is provided, and a partition wall 13 is provided on the insulator layer 12 between the data electrode 11 and in parallel with the data electrode 11. Further, red, green, and blue phosphor layers 14 are provided on the surface of the insulator layer 12 and the side surfaces of the partition walls 13.
- the front plate 2 and the back plate 9 are arranged facing each other in the direction in which the scan electrode 4 and the sustain electrode 5 intersect with the data electrode 11, and a discharge space 15 formed therebetween has For example, a mixed gas of neon and xenon is sealed as a discharge gas. Then, the intersection of the display electrode pair 6 in the discharge space 15 and the data electrode 11 operates as a discharge cell 16 which is a unit light emitting region.
- FIG. 2 is a block diagram of a drive circuit and an electrode array of a panel according to the embodiment of the present invention.
- display electrode pair 6 of panel 1 is divided into four blocks, and scan electrodes 4 and sustain electrodes 5 belonging to each block are independently driven.
- the plasma display device has an image signal processing unit 106 that converts the image signal S ig into image data for each subfield, and converts the image data for each subfield into a signal corresponding to each data electrode 11, and converts the data electrode 1 1
- the data electrode drive unit 102 that drives the data
- the timing generation unit 105 that generates various timing signals based on the horizontal synchronization signal H and the vertical synchronization signal V
- the display electrode pair 6 of the panel 1 is divided into four blocks, and four scan electrode driving for driving the scan electrodes 4 for each block are performed.
- the sections 13 1 to 13 4 and the four sustain electrode driving sections 14 1 to 14 4 for driving the sustain electrodes 5 for the respective blocks are provided independently. Then, as described later, each block is driven at a different timing.
- the number of display electrode pairs of the panel is 38.4 (76 8 X 1/2), and one field is composed of 20 subfields (1 SF, 2 SF, '- ', 20 SF) and only the first subfield has an initialization period to emit light.
- the description will be made on the assumption that the driving is performed with the continuous subfields.
- the number of sustain pulses in the sustain period of each subfield is (222, 208, 194, 180, 166, 152, 140, 126, 114, 102, 90, 78, 68, 56, 46, 36, 28, 18, 12, 4).
- FIG. 3 is a drive voltage waveform diagram applied to each electrode for one block.
- the data electrode 11 and the sustain electrode 5 are maintained at 0 (V), and the scan electrode 4 is discharged from the voltage V i 1 (V) which is lower than the discharge start voltage. Apply a ramp voltage that gradually rises toward the voltage V i 2 (V) exceeding the starting voltage.
- the sustain electrode 5 is maintained at the positive voltage Vh (V), and the scan electrode 4 is applied with a ramp voltage that gradually decreases from the voltage Vi 3 (V) to the voltage Vi 4 (V).
- the wall voltage on scan electrode 4 and the wall voltage on sustain electrode 5 are weakened, and the wall voltage on data electrode 11 also becomes a write operation. Adjusted to a suitable value.
- the wall voltage on the electrode means a voltage generated by wall charges accumulated on the dielectric layer 7, the protective layer 8, or the phosphor layer 14 covering the electrode.
- scan electrode 4 is temporarily held at Vc (V).
- a positive write pulse voltage V d (V) is applied to the data electrodes 11 of the discharge cells to be displayed on the first row of the block among the data electrodes 11 and the scanning of the first row of the block is performed.
- a scanning pulse voltage V a (V) is applied to the electrode 4.
- a discharge occurs between the data electrode 11 to which the write pulse voltage Vd (V) is applied and the scan electrode 4 in the first row, and progresses to a discharge between the sustain electrode 5 and the scan electrode 4. I do.
- an address operation is performed in which an address discharge is selectively caused in the discharge cells to be displayed on the first row to accumulate a wall voltage on each electrode.
- the above-mentioned write operation is sequentially performed up to the discharge cells in the last row of the block.
- a positive sustain pulse voltage V s (V) is alternately applied to the sustain electrodes 5 and the scan electrodes 4. Then, in the discharge cell in which the address discharge has occurred, the voltage between the scanning electrode 4 and the sustain electrode 5 is added to the sustain pulse voltage V s (V) by the wall voltage accumulated in the address operation, and the discharge start voltage is reduced. Exceeding sustain discharge occurs. Write period No sustain discharge occurs in the discharge cells in which no address discharge has occurred.
- the subfields after 2 SF in this block have no initialization period, and consist of a writing period and a sustaining period. Therefore, in the discharge cells in which the sustain discharge has occurred in the immediately preceding subfield, the sustain discharge occurs in the sustain period without performing the address operation during the address period.
- the panel driving method according to the present embodiment is a driving method in which subfields to emit light are continuous. Note that the operations in the address period and the sustain period in the subfields after 2 SF are the same as those in 1 SF, and therefore the description is omitted.
- FIG. 4 is a diagram showing timings of an initialization period, a writing period, and a sustain period of each subfield for four blocks in the first embodiment.
- the vertical axis indicates the four blocks
- the horizontal axis indicates the time axis.
- the maintenance period of the second block is started, and the initialization period and the writing period in 1 SF of the third block are continued.
- the sustaining period of the third block is started, and the initialization period and the writing period in 1 SF of the fourth block are continued.
- the sustain period of the fourth block is started, and if the end of the maintain period of the first block is ended, the write period of the first block at 2 SF is started. If the sustain period of the first block has not ended, the writing period in 2SF of the first block is started after the end of the sustain period. Then, after the end of the write period of the first block, the sustain period of the first block is started, and if the end period of the second block is ended, the write period of 2SF of the second block is started. If the sustaining period of the second block has not ended, the writing period in 2SF of the second block is started after the end of the sustaining period. To do.
- the writing periods of the third block and the fourth block are executed so as not to overlap with the writing periods of the other blocks.
- a period that does not belong to any of the initialization period, the writing period, and the maintenance organization may occur.
- this period is referred to as a “pause period”.
- the sustain period of the fourth block is started after the end of the write period of the fourth block at 20 SF, and if the sustain period of the first block is over, the initialization of the next field of the first block at 1 SF is performed. Start the period. If the maintenance period of the first block has not ended, the initialization period starts after the maintenance period ends.
- an adjustment period for adjusting the length of one field to 1/60 s may be provided between 20 S F and 1 S F of the next field.
- the display electrode pair is divided into a plurality of blocks, and the phases are shifted so that the writing period in each block does not overlap with the writing period or the initialization period in another block.
- the driving time of one field can be shortened.
- the length of the initialization period is 200 s
- the writing time per pair of display electrodes is 1.7 ⁇ s
- the number of display electrode pairs in each block is 96
- the pulse width of the sustain pulse is 4.5. Assuming that s, as shown in FIG. 4, a subfield configuration having 20 SF in 15.8 ms becomes possible.
- the start time of the subfield of each block is different so that the writing periods of two or more blocks of the plurality of blocks do not overlap in time, the writing period of a certain block and Since the drive can be performed while the maintenance period of another block is overlapped with the initialization period, and the drive time of one field can be shortened, the number of subfields can be increased and the number of gray scales that can be displayed can be increased.
- the luminance may be improved by extending the sustain period.
- the number of blocks is set to 4 by dividing the display electrode pair 6 into four.However, the drive time becomes longer when the number of blocks is too large, and the drive time becomes longer when the number of blocks is too small. Become. This is because the sustain period overlaps with the write period when the number of blocks is increased. Although the driving time can be shortened because it can be turned, the driving time is correspondingly longer because the initialization period is provided by shifting the time for each block. Therefore, it is desirable to optimize the number of blocks based on conditions such as the number of scan electrodes, the number of subfields, the presence or absence of an initialization period for each subfield, the number of sustain pulses, and the time required for address discharge and sustain discharge. .
- a driving method using positive logic in which the initialization period is executed only in the first subfield, and thereafter, a write operation for starting lighting from a desired subfield is performed.
- a driving method using negative logic in which each subfield is continuously turned on, a wall charge is erased in a desired subfield, and a sustaining light emission is stopped by performing a writing operation, may be used.
- a driving method may be used.
- Embodiment 1 is also different from Embodiment 1 in that one field is composed of 20 subfields, an initializing period is provided only in the first subfield 1 SF, and subfields for emitting light are driven continuously.
- Embodiment 2 is different from Embodiment 1 in that the lengths of the subfields of 2 SF to 20 SF excluding the first subfield are set equal for each block, and that the first subfield 1 SF Is set to be left justified by 1 SF of each block.
- FIG. 5 is a diagram showing timings of an initialization period, a writing period, and a sustain period of each subfield for four blocks in the second embodiment.
- the vertical axis shows the four blocks
- the horizontal axis shows the time axis.
- the part of the pause period of the first block that is longer than the pause period of the fourth block is written as the pause period in 1 SF of the first block. Only after the period.
- the pause period of the second block is started, and the initialization period and the writing period in 1 SF of the third block are executed.
- the length of the pause period of the second block is also equal to the length of the pause period of the second block longer than the pause period of the fourth block. Then, after the suspension period of the second block, the maintenance period of the second block is started.
- the pause period of the third block is started, and the initialization period and the writing period in 1 SF of the fourth block are executed. Then, after the suspension period of the third block, the maintenance period of the third block is started.
- the length of each subfield after 2 SF can be made equal between each block, and the time at which the sustain period starts in adjacent blocks can be set.
- the difference can be set to the length of the writing period of each block, and in the second embodiment, 1 to 4 of the writing time for all display electrode pairs. This value is the minimum value that can be implemented.
- the time difference at which the sustain period starts in each block can be set to the above-described minimum value. In this way, by setting the time difference between the sustain periods during which the panel emits light in each block to a minimum, even if the panel is divided into blocks and the panel is driven, the visual effect can be prevented.
- the sustain period of the fourth block is started, and if the end of the sustain period of the first block is ended, the write period of 2SF of the first block is started. If the sustain period of the first block has not ended, the writing period in 2SF of the first block is started after the end of the sustain period. Then, after the end of the write period of the first block, the sustain period of the first block is started, and if the end of the sustain period of the second block is ended, the write period of 2SF of the second block is started. If the sustain period of the second block has not ended, the write period in 2SF of the second block is started after the end of the sustain period.
- the writing periods of the third block and the fourth block are executed so as not to overlap with the writing periods of the other blocks.
- the time difference at which the sustain period starts in each block is 4 1 can be set to s. Further, by setting the time difference between the sustain periods during which the panel emits light in each block to a minimum, even if the panel is divided into blocks and the panel is driven, the visual effect can be prevented.
- the panel used in Embodiment 3 of the present invention is the same as in Embodiment 1.
- the display electrode pair 6 of the panel 1 is divided into three blocks, and three scan electrode driving units 13 1 to 13 3 for driving the scan electrodes 4 for each block, and Three sustain electrode driving units 14 1 to 14 3 for driving the sustain electrodes 5 for each block are provided independently of each other. As described later, each block is driven at different evenings.
- the number of display electrode pairs on the panel is 384 pairs (768 ⁇ 1/2), and one field is replaced by 10 subfields (1 SF, 2 SF,). , 10 SF), all subfields have an initialization period, and each subfield can be controlled to emit or not emit light.
- the number of sustain pulses in the sustain period of each subfield is a constant N times (66, 55, 44, 34, 25, 16, 16, 8, 4, 2, 1), respectively. I do.
- N The subfield configuration in which the number of sustain pulses is set to N times the above is hereinafter referred to as “N times mode”.
- FIG. 6 is a diagram showing the timing of the initialization period, write period, and sustain period of each subfield for three blocks. Again, the vertical axis shows the three blocks, and the horizontal axis shows the time axis.
- an initialization period in 1 SF of the first block is started. Then, after the end of the initialization period, the writing period in 1 SF of the first block is started. After the end of the writing period of the first block, the maintenance period of the first block is started and the initialization period of the second block at 1 SF is started. And the initialization period of the second block is over. After that, the writing period of the second block starts. Similarly, after the end of the writing period of the second block, the sustaining period of the second block is started, and the initialization period and the writing period at 1 SF of the third block are continued.
- the holding period of the third block starts, and if the holding period of the first block has ended, the initialization period and the writing period in 2SF of the first block. And continue. If the sustain period of the first block has not ended, the initialization period and the write period in 2SF of the first block are continued after the end of the sustain period. Then, after the end of the write period of the first block, the sustain period of the first block is started, and if the sustain period of the second block is completed, the initialization period, the write period, and the 2SF of the second block are completed. to continue. If the sustain period of the second block has not ended, the initialization period and the write period in 2SF of the second block are continued after the end of the sustain period. Similarly, the initialization period and the writing period of the next block are executed so as not to overlap with the initialization period and the writing period of the other blocks.
- the third block maintenance period is started after the end of the third block write period at 10 SF, and if the first block maintenance period has ended, the first block in the next SF of the first block after the first block has ended. Start the initialization period. If the maintenance period of the first block has not ended, the initialization period starts after the maintenance period ends.
- an adjustment period for adjusting the length of one field to 1 to 60 s may be provided between 10 SF and 1 SF of the next field. In this way, the display electrode pairs are divided into a plurality of blocks, and the blocks are driven out of phase so that the writing period in each block does not overlap with the writing period or initialization period in another block. The driving time of one field can be shortened.
- the length of the initialization period of 1 SF is 200 s
- the length of the initialization period of 2 SF to 10 SF is 100 s
- the writing time per pair of display electrodes is 1.7 (is If the number of display electrode pairs in each block is 96 and the pulse width of the sustain pulse is 4.5 11 s, as shown in Fig. 6, even if the value of the constant N is set to ⁇ 10 '',
- the total length of one field is 16.2 ms, and it is possible to increase the brightness up to 10 times mode. Under the same conditions, it takes 18.3 ms to realize the 10-times mode, and it will not be possible because the time of one field exceeds 16.6 ms.
- the writing period of a certain block and the The drive can be performed with the sustain period of another block overlapped with the initialization period, and the number of sustain pulses can be increased to enable image display with high luminance.
- the number of gradations that can be displayed may be increased by increasing the number of subfields.
- the display electrode pair 6 is divided into three to make the number of blocks three.
- the drive time becomes longer even if the number of blocks is too large.
- the amount is too small, the driving time becomes long. Therefore, also in this case, it is desirable to optimize the number of blocks based on various conditions such as the number of scan electrodes, the number of subfields, the number of sustain pulses, and the time required for address discharge and sustain discharge.
- the driving method of the plasma display panel of the present invention can secure the time allotted to the sustain period or the time for increasing the number of subfields, and can achieve high luminance and high gradation display. It is useful for plasma display devices and the like.
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- Engineering & Computer Science (AREA)
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- Computer Hardware Design (AREA)
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Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/533,130 US7411570B2 (en) | 2003-11-04 | 2004-11-04 | Method of driving plasma display panel and plasma display panel in which a difference between starting timings of the sustaining time periods in adjacent blocks is set substantially equal to the length of the writing time period in the adjacent blocks |
| EP04799594A EP1560191A4 (en) | 2003-11-04 | 2004-11-04 | CONTROL METHOD FOR A PLASMA DISPLAY PANEL AND PLASMA DISPLAY PANEL |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003374145 | 2003-11-04 | ||
| JP2003-374145 | 2003-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005043503A1 true WO2005043503A1 (ja) | 2005-05-12 |
Family
ID=34544185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/016700 Ceased WO2005043503A1 (ja) | 2003-11-04 | 2004-11-04 | プラズマディスプレイパネルの駆動方法およびプラズマディスプレイ装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7411570B2 (ja) |
| EP (1) | EP1560191A4 (ja) |
| KR (2) | KR100701862B1 (ja) |
| CN (2) | CN101527112B (ja) |
| WO (1) | WO2005043503A1 (ja) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100670184B1 (ko) * | 2005-07-18 | 2007-01-16 | 삼성에스디아이 주식회사 | 플라즈마 표시 장치 및 그 구동 방법 |
| KR100775841B1 (ko) * | 2006-05-12 | 2007-11-13 | 엘지전자 주식회사 | 플라즈마 디스플레이 패널의 구동장치 |
| JP2008046583A (ja) * | 2006-08-10 | 2008-02-28 | Samsung Sdi Co Ltd | プラズマディスプレイ装置の電極駆動方法 |
| KR100879469B1 (ko) * | 2006-08-10 | 2009-01-20 | 삼성에스디아이 주식회사 | 플라즈마 디스플레이 장치의 전극 구동 방법 |
| WO2009133660A1 (ja) * | 2008-04-28 | 2009-11-05 | パナソニック株式会社 | プラズマディスプレイパネルの駆動方法およびプラズマディスプレイ装置 |
| WO2010140307A1 (ja) * | 2009-06-02 | 2010-12-09 | パナソニック株式会社 | プラズマディスプレイパネルの製造方法 |
| CN102138171A (zh) * | 2009-07-13 | 2011-07-27 | 松下电器产业株式会社 | 等离子显示面板的驱动电路 |
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|---|---|---|---|---|
| JPH09244578A (ja) * | 1996-03-13 | 1997-09-19 | Fujitsu Ltd | プラズマ表示装置及びその駆動方法 |
| JPH10149132A (ja) * | 1996-11-18 | 1998-06-02 | Mitsubishi Electric Corp | プラズマディスプレイパネルの駆動方法 |
| JPH1145070A (ja) * | 1997-07-25 | 1999-02-16 | Mitsubishi Electric Corp | プラズマディスプレイパネルおよびその駆動方法 |
| JP2000276101A (ja) * | 1999-03-24 | 2000-10-06 | Pioneer Electronic Corp | プラズマディスプレイパネルの駆動方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5684499A (en) * | 1993-11-29 | 1997-11-04 | Nec Corporation | Method of driving plasma display panel having improved operational margin |
| JPH11184427A (ja) * | 1997-12-25 | 1999-07-09 | Fujitsu Ltd | Pdpの駆動方法 |
| KR100264462B1 (ko) * | 1998-01-17 | 2000-08-16 | 구자홍 | 3전극 면방전 플라즈마 디스플레이 패널의 구동방법 및 그 구동장치 |
| KR100347586B1 (ko) * | 1998-03-13 | 2002-11-29 | 현대 프라즈마 주식회사 | 교류형플라즈마디스플레이패널구동방법 |
| KR100290830B1 (ko) | 1998-07-04 | 2001-06-01 | 구자홍 | 플라즈마디스플레이패널구동방법및장치 |
| TW389883B (en) * | 1998-08-26 | 2000-05-11 | Acer Display Tech Inc | Method of driving the plasma display panel |
| WO2000057396A1 (en) * | 1999-03-19 | 2000-09-28 | Hitachi, Ltd. | Display and image displaying method |
| JP2001265281A (ja) * | 2000-03-17 | 2001-09-28 | Matsushita Electric Ind Co Ltd | 表示装置およびその駆動方法 |
| EP1172787A1 (en) * | 2000-07-13 | 2002-01-16 | Deutsche Thomson-Brandt Gmbh | Gradation control of a matrix display |
| KR100458581B1 (ko) * | 2002-07-26 | 2004-12-03 | 삼성에스디아이 주식회사 | 플라즈마 디스플레이 패널의 구동 장치 및 그 방법 |
-
2004
- 2004-11-04 CN CN2009101273378A patent/CN101527112B/zh not_active Expired - Fee Related
- 2004-11-04 WO PCT/JP2004/016700 patent/WO2005043503A1/ja not_active Ceased
- 2004-11-04 US US10/533,130 patent/US7411570B2/en not_active Expired - Fee Related
- 2004-11-04 CN CNA2004800014795A patent/CN1717713A/zh active Pending
- 2004-11-04 EP EP04799594A patent/EP1560191A4/en not_active Withdrawn
- 2004-11-04 KR KR1020067026515A patent/KR100701862B1/ko not_active Expired - Fee Related
- 2004-11-04 KR KR1020057008888A patent/KR100693897B1/ko not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09244578A (ja) * | 1996-03-13 | 1997-09-19 | Fujitsu Ltd | プラズマ表示装置及びその駆動方法 |
| JPH10149132A (ja) * | 1996-11-18 | 1998-06-02 | Mitsubishi Electric Corp | プラズマディスプレイパネルの駆動方法 |
| JPH1145070A (ja) * | 1997-07-25 | 1999-02-16 | Mitsubishi Electric Corp | プラズマディスプレイパネルおよびその駆動方法 |
| JP2000276101A (ja) * | 1999-03-24 | 2000-10-06 | Pioneer Electronic Corp | プラズマディスプレイパネルの駆動方法 |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR100701862B1 (ko) | 2007-03-30 |
| EP1560191A1 (en) | 2005-08-03 |
| CN101527112A (zh) | 2009-09-09 |
| CN1717713A (zh) | 2006-01-04 |
| KR100693897B1 (ko) | 2007-03-12 |
| KR20050117515A (ko) | 2005-12-14 |
| EP1560191A4 (en) | 2006-02-08 |
| US20060033686A1 (en) | 2006-02-16 |
| KR20070005741A (ko) | 2007-01-10 |
| CN101527112B (zh) | 2011-03-16 |
| US7411570B2 (en) | 2008-08-12 |
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